plane table and levelling

the purpose of alidade in a plane table surveying is:

• levelling
• centring
• sighting the traget points
• oreintation

How many methods of plane table surveying are there?

• 2
• 1
• 3
• 4

Plane table is made of:

• paper
• steel
• plastic
• wood

Which of the below is not an advantage of PT survey?

• Used for accurate works
• Less costly
• Field book is not required
• Rapid method

Plan table surveying uses the methodology of:

• Triangulation
• Contouring
• Ranging
• Traversing

In the method of an intersection, only one linear measurement is made.

• true
• False
• not sure

Which of the below is used for levelling a plane table?

• plumb bob
• compass
• spirit level
• plumbing fork

A plumbing fork is used to __________ the plane table.

• centering
• singhting
• levelling
• orientation

How many chief types of levels are used in levelling?

• 2
• 4
• 3
• 6

A levelling staff is used to establish:

• Horizontal line of sight
• Vertical line of sight
• Location of points
• Distance of points